The international popularity of Noah has led to some parents searching for alternatives and the rhyming Koa is now attracting more attention than ever. With its cool K initial and summery, nature-inspired feel, this punchy three letter name has risen more than 600 places since it entered the US charts in 2017.

A simple and streamlined Biblical name, Joah borne by several figures in the Old Testament. Meaning "Yahweh is his brother" or "brother of God", it could be an unexpected way to honor a family Joe or an alternative to the popular Noah, Josiah, and Jonah.

Moa was among the Top 100 Swedish baby names throughout the 2000s and 2010s, though it has since declined in use. Pronounced as MOO-ah in Sweden, it is virtually unknown in the US.

Possibly a variation of the ultra-popular Greek Zoe, Zoa was given to around 2 dozen baby girls each recent year.

Though little used as a first name, Loa will be familiar to many from the name of Hawaii's most famous volcano, Mauna Loa, on the Big Island.